discoveries             package:datasets             R Documentation

_Y_e_a_r_l_y _N_u_m_b_e_r_s _o_f _I_m_p_o_r_t_a_n_t _D_i_s_c_o_v_e_r_i_e_s

_D_e_s_c_r_i_p_t_i_o_n:

     The numbers of "great" inventions and scientific discoveries in
     each year from 1860 to 1959.

_U_s_a_g_e:

     discoveries

_F_o_r_m_a_t:

     A time series of 100 values.

_S_o_u_r_c_e:

     The World Almanac and Book of Facts, 1975 Edition, pages 315-318.

_R_e_f_e_r_e_n_c_e_s:

     McNeil, D. R. (1977) _Interactive Data Analysis_. Wiley.

_E_x_a_m_p_l_e_s:

     require(graphics)
     plot(discoveries, ylab = "Number of important discoveries",
          las = 1)
     title(main = "discoveries data set")